问题
____ do you go to your school library?—Three times a month. [ ]
A: How long
B: How often
C: IMG style="WI
D: When
B: How often
C: IMG style="WI
D: When
正确答案是：
同类题型
Watching TV___________ is __________bad for our health.
I go back to sleep when suddenly my bedroom became as bright as day.
There is ______ food in the fridge.
“______ can you stay here in the summer holidays?” “For two weeks.” [ ]
Liu Xiang came third ______ the 110-meter-hurdle race last month in Shanghai. [ ]